EPA Soot List

100 million people living in 46 metropolitan areas are breathing air containing unsafe levels of soot and are in violation of EPA’s fine-particle pollution limits.

On December 22nd, the EPA notified 25 governors and 23 tribal leaders that 211 counties in 25 states did not meet federal pollution standards. 15 new cities and 54 additional counties have been added to the updated “Soot List”.

The EPA reviewed recommendations from states and tribes along with public comments before making its decision to designate counties and parts of counties as not meeting EPA’s PM 2.5 standards. These areas, known as nonattainment areas, include counties with monitors violating the standards and nearby areas that contribute to that violation. Affected states and tribes will be required to take steps to reduce the pollution that forms fine particles. The vast majority of U.S. counties and tribal lands currently meet standards, but will need to continue working to maintain clean air.

New cities include on this year’s list are:
Fairbanks and Juneau, Alaska
Nogales, Arizona
Pinehurst, Idaho
Davenport and Muscatine, Iowa
Klamath and Oakridge, Oregon
Provo and Salt Lake City, Utah
Seattle, Washington
Green Bay, Madison and Milwaukee, Wisconsin
Logan, Utah

Many states west of the Rockies have nonattainment regions that exceed federal air pollution levels. They include counties in Utah, Montana, Arizona, Idaho, Oregon, Washington, California and Alaska.

In California, all or part of 30 counties have been put on notice to clean up their air. The Bay Area has exceeded acceptable levels of particulate matter five times in the past 2 months and received 32 warning letters.

In Southwestern Pennsylvania, 10 areas are not compliant, including the city of Pittsburgh.

Chicago along with 6 Illinois counties are included on the Soot List.

In 2006, EPA strengthened the 24-hour fine particle standards from 65 micrograms per cubic meter to 35 micrograms per cubic meter of air to protect public health. Nationwide, monitored levels of fine particle pollution fell 11 percent from 2000 to 2007. Fine particles can either be emitted directly, or they can form in the atmosphere from reactions of sulfur dioxide and nitrogen oxides. Exposure to fine particle pollution can cause a number of serious health problems including aggravated asthma, increased hospital admissions and emergency room visits for respiratory and cardiovascular disease, heart attacks and premature death.

According to the EPA, nonattainment areas must develop a plan to clean the air by 2012 and have that plan in place by 2014.

See the Source:

EPA Soot List – Area Designations for 2006 24-Hour Fine Particle (PM2.5) Standards
State Designations by Region

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Diesel Particulate Filters to reduce particulate matter from diesel engines